An exhibition of work by the composer, singer and musician Björk at the Museum of Modern Art includes instruments, outfits, videos and sounds from a career that stretches more than 20 years. (Timothy A. Clary / AFP/Getty Images)

George Lucas’ museum hits a road bump. The papers of a Nazi-era art dealer are to be made public. A fight erupts over a Jeff Koons sculpture in Sacramento. A mystery museum is planned for downtown L.A. And the Björk show in New York? The reviews are in and they are, well, colorful. I’m still running around Santiago, but I’ve nonetheless got some links for the Roundup:

— Documents that belonged to a Nazi-era art dealer Hildebrand Gurlitt (father of art hoarder Cornelius Gurlitt) will be released online to help improve processing of the collection, which the younger Gurlitt left to a Swiss museum.

— There have been two notable architectural deaths in the past week: post-modernist Michael Graves (who, among many other buildings, designed Disney's headquarters in Burbank) and Frei Otto, the German architect and engineer, renowned for his tent-like structures, who was awarded the Pritzker Prize the day after passing away.

— In other gallery news, Hauser Wirth & Schimmel is staffing up: The soon-to-debut downtown L.A. space led by former MOCA curator Paul Schimmel just hired Graham Steele as its senior director — from the trés fancy White Cube in London, no less.

— “One part Rock and Roll Hall of Fame exercise, one part science lab, one part synesthesia experiment.” The reviews of the Björk show at New York’s Museum of Modern Art have been entertainingly searing. More here.

— In 1990, one of the most notorious art heists ever occurred at the Isabella Stewart Gardner Museum in Boston, with thieves making off with 13 objects, including canvases by Rembrandt, Degas and Vermeer. A security guard remembers that fateful night.